In recent years, the top players have felt the squeeze as people are becoming increasingly health conscious. Sugary drinks, for example, like those manufactured by PepsiCo fell 9% in 2013. It was the ninth year of declines.

In April, PepsiCo announced it was changing its product lineup to better reflect consumer tastes. Globally, only 25% of the company’s sales come from soda with 12% coming from the Pepsi brand, according to The Boston Globe. An additional 25% of sales come from unsweetened drinks and bottled water.

To compensate for decreased sales, companies like PepsiCo are trying to market smaller serving sizes that bring in more money per ounce.

The Grocery Manufacturers Association and the U.S. Food and Drug Administration are against the labeling. However, customers want to know what’s in the foods they are eating.

“The message is clearly getting through that Americans demand transparency about what’s in their food, and any food company that wants to survive in the 21st century needs to respect that,” Megan Westgate, director of the Non-GMO Project, a non-profit dedicated to providing non-GMO labeling for manufacturers, told Fox Business.

Meanwhile, development charity Oxfam reports that the world’s major food companies have improved their rankings, according to Bloomberg. Companies were ranked in several categories including sustainability, human rights, climate change, carbon emissions, land rights, water usage, treatment of women and treatment of workers.

The first ratings were conducted in 2013, and all the companies on the list have improved their scores since then. This year, Unilever took the top spot with a score of 52. It was followed by Nestle, Coca-Cola, Kellogg, Mars, PepsiCo, Mondelez, General Mills Inc., ABF and Danone. A maximum of 70 points was possible.

Oxfam believes that by applying pressure on the biggest food companies it can bring about social change. Changes made by the larger companies eventually trickles down to smaller ones.

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